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Table 1 Mean (SD) age and scores on the questionnaire, psychometric and psychophysical test batteries

From: Late, not early mismatch responses to changes in frequency are reduced or deviant in children with dyslexia: an event-related potential study

 

Group

Statistics ( p; (n2))

 

TD

DYS

 
 

Younger

Older

Younger

Older

Group

Age band

Group × age band

Number of males and females

5 males, 5 females

5 males, 5 females

9 males, 1 female

6 males, 4 females

   

Age (years)

8.96 (1.08)

11.93 (1.19)

9.06 (0.99)

12.32 (0.74)

0.461 (0.02)

<0.001 (0.72)

0.659 (0.01)

CCC-2 GCCab

91.20 (18.16)

84.10 (12.84)

57.30 (23.80)

59.11 (22.44)

<0.001 (0.38)

0.662 (0.01)

0.485 (0.014)

WASI matricesc

108.50 (12.48)

102.90 (9.01)

98.20 (15.70)

98.10 (10.29)

0.054 (0.10)

0.460 (0.02)

0.478 (0.01)

TOWRE sight wordsc

104.60 (11.06)

97.40 (11.66)

87.40 (12.23)

80.90 (10.31)

<0.001 (0.36)

0.06 (0.092)

0.923 (0.00)

TOWRE phonetic decodingc

108.70 (8.60)

107.90 (12.74)

82.60 (7.29)

71.15 (8.28)

<0.001 (0.76)

0.05 (0.10)

0.080 (0.08)

NEPSY nonword repetitiond

10.80 (2.20)

11.60 (2.67)

6.90 (2.02)

6.60 (2.27)

<0.001 (0.50)

0.732 (0.00)

0.455 (0.016)

FD threshold (log 10 Hz)a

1.87 (0.32)

1.11 (0.54)

1.49 (0.54)

1.11 (0.21)

NA

See text

NA

FD threshold (Hz)a

93.83 (61.46)

28.37 (43.86)

54.00 (53.90)

14.29 (6.65)

NA

NA

NA

  1. GCC General Communication Composite of the Children's Communication Checklist (CCC-2) (Bishop [58]), WASI Wechsler Abbreviated Scale of Intelligence (Wechsler [56]), TOWRE Test of Word Reading Efficiency (Torgesen et al. [54]), NEPSY (Korkman et al. [55]), FD frequency discrimination. See text for details. aMissing data: one case for CCC-2, two for FD. bNormative mean = 80. cScaled with mean 100, SD 15. dScaled with mean 10, SD 3. The italicised values indicate those comparisons that are significant at p < 0.05.
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Journal of Neurodevelopmental Disorders

ISSN: 1866-1955

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